<template>
  <div class="my_div">
    <img
      src="https://scpic.chinaz.net/files/pic/pic9/202003/zzpic23514.jpg"
      alt=""
    />
    <p
      :style="{backgroundColor: colorStr}"
      @click="btn"
    >这是一个孤独可怜的狗</p>
  </div>
</template>

<script>
export default {
  data () {
    return {
      colorStr: ''
    }
  },
  methods: {
    btn () {
      this.colorStr = `rgb(${Math.floor(Math.random() * 256)},${Math.floor(Math.random() * 256)},${Math.floor(Math.random() * 256)})`
    }
  }
}
</script>

<style>
.my_div {
  width: 400px;
  border: 1px solid black;
  text-align: center;
  float: left;
}

.my_div img {
  width: 100%;
}
</style>